/*********************                                                        */
/*! \file rewrites.cpp
 ** \verbatim
 ** Top contributors (to current version):
 **   Andrew Reynolds
 ** This file is part of the CVC4 project.
 ** Copyright (c) 2009-2020 by the authors listed in the file AUTHORS
 ** in the top-level source directory and their institutional affiliations.
 ** All rights reserved.  See the file COPYING in the top-level source
 ** directory for licensing information.\endverbatim
 **
 ** \brief Implementation of inference information utility.
 **/

#include "theory/arith/rewrites.h"

#include <iostream>

namespace CVC4 {
namespace theory {
namespace arith {

const char* toString(Rewrite r)
{
  switch (r)
  {
    case Rewrite::NONE: return "NONE";
    case Rewrite::CONST_EVAL: return "CONST_EVAL";
    case Rewrite::MOD_TOTAL_BY_CONST: return "MOD_TOTAL_BY_CONST";
    case Rewrite::DIV_TOTAL_BY_CONST: return "DIV_TOTAL_BY_CONST";
    case Rewrite::DIV_MOD_BY_ZERO: return "DIV_MOD_BY_ZERO";
    case Rewrite::MOD_BY_ONE: return "MOD_BY_ONE";
    case Rewrite::DIV_BY_ONE: return "DIV_BY_ONE";
    case Rewrite::DIV_MOD_PULL_NEG_DEN: return "DIV_MOD_PULL_NEG_DEN";
    case Rewrite::MOD_OVER_MOD: return "MOD_OVER_MOD";
    case Rewrite::MOD_CHILD_MOD: return "MOD_CHILD_MOD";
    case Rewrite::DIV_OVER_MOD: return "DIV_OVER_MOD";
    default: return "?";
  }
}

std::ostream& operator<<(std::ostream& out, Rewrite r)
{
  out << toString(r);
  return out;
}

}  // namespace arith
}  // namespace theory
}  // namespace CVC4